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18 <h1><a href="http://developer.yahoo.com/yui/" title="Yahoo! UI Library">Yahoo! UI Library</a></h1> |
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19 <h3>json <span class="subtitle">3.0.0b1</span></h3> |
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20 <a href="./index.html" title="Yahoo! UI Library">Yahoo! UI Library</a> |
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21 > <a href="./module_json.html" title="json">json</a> |
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22 |
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23 > json-stringify.js (source view) |
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50 <div class="highlight" ><pre><span class="c">/**</span> |
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51 <span class="c"> * Provides Y.JSON.stringify method for converting objects to JSON strings.</span> |
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52 <span class="c"> *</span> |
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53 <span class="c"> * @module json</span> |
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54 <span class="c"> * @submodule json-stringify</span> |
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55 <span class="c"> * @for JSON</span> |
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56 <span class="c"> * @static</span> |
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57 <span class="c"> */</span> |
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58 <span class="k">var</span> <span class="nx">_toString</span> <span class="o">=</span> <span class="nb">Object</span><span class="o">.</span><span class="nx">prototype</span><span class="o">.</span><span class="nx">toString</span><span class="o">,</span> |
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59 <span class="nx">Lang</span> <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">Lang</span><span class="o">,</span> |
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60 <span class="nx">isFunction</span><span class="o">=</span> <span class="nx">Lang</span><span class="o">.</span><span class="nx">isFunction</span><span class="o">,</span> |
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61 <span class="nx">isArray</span> <span class="o">=</span> <span class="nx">Lang</span><span class="o">.</span><span class="nx">isArray</span><span class="o">,</span> |
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62 <span class="nx">type</span> <span class="o">=</span> <span class="nx">Lang</span><span class="o">.</span><span class="nx">type</span><span class="o">,</span> |
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63 <span class="nx">STRING</span> <span class="o">=</span> <span class="s1">'string'</span><span class="o">,</span> |
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64 <span class="nx">NUMBER</span> <span class="o">=</span> <span class="s1">'number'</span><span class="o">,</span> |
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65 <span class="nx">BOOLEAN</span> <span class="o">=</span> <span class="s1">'boolean'</span><span class="o">,</span> |
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66 <span class="nx">OBJECT</span> <span class="o">=</span> <span class="s1">'object'</span><span class="o">,</span> |
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67 <span class="nx">ARRAY</span> <span class="o">=</span> <span class="s1">'array'</span><span class="o">,</span> |
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68 <span class="nx">REGEXP</span> <span class="o">=</span> <span class="s1">'regexp'</span><span class="o">,</span> |
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69 <span class="nx">ERROR</span> <span class="o">=</span> <span class="s1">'error'</span><span class="o">,</span> |
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70 <span class="nx">NULL</span> <span class="o">=</span> <span class="s1">'null'</span><span class="o">,</span> |
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71 <span class="nx">DATE</span> <span class="o">=</span> <span class="s1">'date'</span><span class="o">,</span> |
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72 <span class="nx">EMPTY</span> <span class="o">=</span> <span class="s1">''</span><span class="o">,</span> |
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73 <span class="nx">OPEN_O</span> <span class="o">=</span> <span class="s1">'{'</span><span class="o">,</span> |
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74 <span class="nx">CLOSE_O</span> <span class="o">=</span> <span class="s1">'}'</span><span class="o">,</span> |
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75 <span class="nx">OPEN_A</span> <span class="o">=</span> <span class="s1">'['</span><span class="o">,</span> |
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76 <span class="nx">CLOSE_A</span> <span class="o">=</span> <span class="s1">']'</span><span class="o">,</span> |
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77 <span class="nx">COMMA</span> <span class="o">=</span> <span class="s1">','</span><span class="o">,</span> |
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78 <span class="nx">COMMA_CR</span> <span class="o">=</span> <span class="s2">",\n"</span><span class="o">,</span> |
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79 <span class="nx">CR</span> <span class="o">=</span> <span class="s2">"\n"</span><span class="o">,</span> |
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80 <span class="nx">COLON</span> <span class="o">=</span> <span class="s1">':'</span><span class="o">,</span> |
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81 <span class="nx">COLON_SP</span> <span class="o">=</span> <span class="s1">': '</span><span class="o">,</span> |
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82 <span class="nx">QUOTE</span> <span class="o">=</span> <span class="s1">'"'</span><span class="o">;</span> |
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83 |
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84 <span class="nx">Y</span><span class="o">.</span><span class="nx">mix</span><span class="o">(</span><span class="nx">Y</span><span class="o">.</span><span class="nx">namespace</span><span class="o">(</span><span class="s1">'JSON'</span><span class="o">),{</span> |
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85 <span class="c">/**</span> |
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86 <span class="c"> * Regex used to capture characters that need escaping before enclosing</span> |
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87 <span class="c"> * their containing string in quotes.</span> |
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88 <span class="c"> *</span> |
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89 <span class="c"> * @property _SPECIAL_CHARS</span> |
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90 <span class="c"> * @type {RegExp}</span> |
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91 <span class="c"> * @protected</span> |
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92 <span class="c"> */</span> |
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93 <span class="nx">_SPECIAL_CHARS</span> <span class="o">:</span> <span class="sr">/[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g</span><span class="o">,</span> |
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94 |
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95 <span class="c">/**</span> |
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96 <span class="c"> * Character substitution map for common escapes and special characters.</span> |
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97 <span class="c"> *</span> |
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98 <span class="c"> * @property _CHARS</span> |
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99 <span class="c"> * @type {Object}</span> |
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100 <span class="c"> * @static</span> |
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101 <span class="c"> * @protected</span> |
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102 <span class="c"> */</span> |
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103 <span class="nx">_CHARS</span> <span class="o">:</span> <span class="o">{</span> |
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104 <span class="s1">'\b'</span><span class="o">:</span> <span class="s1">'\\b'</span><span class="o">,</span> |
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105 <span class="s1">'\t'</span><span class="o">:</span> <span class="s1">'\\t'</span><span class="o">,</span> |
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106 <span class="s1">'\n'</span><span class="o">:</span> <span class="s1">'\\n'</span><span class="o">,</span> |
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107 <span class="s1">'\f'</span><span class="o">:</span> <span class="s1">'\\f'</span><span class="o">,</span> |
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108 <span class="s1">'\r'</span><span class="o">:</span> <span class="s1">'\\r'</span><span class="o">,</span> |
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109 <span class="s1">'"'</span> <span class="o">:</span> <span class="s1">'\\"'</span><span class="o">,</span> |
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110 <span class="s1">'\\'</span><span class="o">:</span> <span class="s1">'\\\\'</span> |
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111 <span class="o">},</span> |
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112 |
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113 <span class="c">/**</span> |
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114 <span class="c"> * Serializes a Date instance as a UTC date string. Used internally by</span> |
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115 <span class="c"> * stringify. Override this method if you need Dates serialized in a</span> |
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116 <span class="c"> * different format.</span> |
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117 <span class="c"> *</span> |
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118 <span class="c"> * @method dateToString</span> |
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119 <span class="c"> * @param d {Date} The Date to serialize</span> |
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120 <span class="c"> * @return {String} stringified Date in UTC format YYYY-MM-DDTHH:mm:SSZ</span> |
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121 <span class="c"> * @static</span> |
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122 <span class="c"> */</span> |
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123 <span class="nx">dateToString</span> <span class="o">:</span> <span class="k">function</span> <span class="o">(</span><span class="nx">d</span><span class="o">)</span> <span class="o">{</span> |
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124 <span class="k">function</span> <span class="nx">_zeroPad</span><span class="o">(</span><span class="nx">v</span><span class="o">)</span> <span class="o">{</span> |
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125 <span class="k">return</span> <span class="nx">v</span> <span class="o"><</span> <span class="m">10</span> <span class="o">?</span> <span class="s1">'0'</span> <span class="o">+</span> <span class="nx">v</span> <span class="o">:</span> <span class="nx">v</span><span class="o">;</span> |
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126 <span class="o">}</span> |
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127 |
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128 <span class="k">return</span> <span class="nx">QUOTE</span> <span class="o">+</span> <span class="nx">d</span><span class="o">.</span><span class="nx">getUTCFullYear</span><span class="o">()</span> <span class="o">+</span> <span class="s1">'-'</span> <span class="o">+</span> |
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129 <span class="nx">_zeroPad</span><span class="o">(</span><span class="nx">d</span><span class="o">.</span><span class="nx">getUTCMonth</span><span class="o">()</span> <span class="o">+</span> <span class="m">1</span><span class="o">)</span> <span class="o">+</span> <span class="s1">'-'</span> <span class="o">+</span> |
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130 <span class="nx">_zeroPad</span><span class="o">(</span><span class="nx">d</span><span class="o">.</span><span class="nx">getUTCDate</span><span class="o">())</span> <span class="o">+</span> <span class="s1">'T'</span> <span class="o">+</span> |
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131 <span class="nx">_zeroPad</span><span class="o">(</span><span class="nx">d</span><span class="o">.</span><span class="nx">getUTCHours</span><span class="o">())</span> <span class="o">+</span> <span class="nx">COLON</span> <span class="o">+</span> |
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132 <span class="nx">_zeroPad</span><span class="o">(</span><span class="nx">d</span><span class="o">.</span><span class="nx">getUTCMinutes</span><span class="o">())</span> <span class="o">+</span> <span class="nx">COLON</span> <span class="o">+</span> |
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133 <span class="nx">_zeroPad</span><span class="o">(</span><span class="nx">d</span><span class="o">.</span><span class="nx">getUTCSeconds</span><span class="o">())</span> <span class="o">+</span> <span class="s1">'Z'</span> <span class="o">+</span> <span class="nx">QUOTE</span><span class="o">;</span> |
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134 <span class="o">},</span> |
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135 |
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136 <span class="c">/**</span> |
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137 <span class="c"> * <p>Converts an arbitrary value to a JSON string representation.</p></span> |
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138 <span class="c"> *</span> |
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139 <span class="c"> * <p>Objects with cyclical references will trigger an exception.</p></span> |
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140 <span class="c"> *</span> |
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141 <span class="c"> * <p>If a whitelist is provided, only matching object keys will be</span> |
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142 <span class="c"> * included. Alternately, a replacer function may be passed as the</span> |
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143 <span class="c"> * second parameter. This function is executed on every value in the</span> |
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144 <span class="c"> * input, and its return value will be used in place of the original value.</span> |
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145 <span class="c"> * This is useful to serialize specialized objects or class instances.</p></span> |
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146 <span class="c"> *</span> |
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147 <span class="c"> * <p>If a positive integer or non-empty string is passed as the third</span> |
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148 <span class="c"> * parameter, the output will be formatted with carriage returns and</span> |
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149 <span class="c"> * indentation for readability. If a String is passed (such as "\t") it</span> |
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150 <span class="c"> * will be used once for each indentation level. If a number is passed,</span> |
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151 <span class="c"> * that number of spaces will be used.</p></span> |
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152 <span class="c"> *</span> |
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153 <span class="c"> * @method stringify</span> |
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154 <span class="c"> * @param o {MIXED} any arbitrary value to convert to JSON string</span> |
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155 <span class="c"> * @param w {Array|Function} (optional) whitelist of acceptable object</span> |
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156 <span class="c"> * keys to include, or a replacer function to modify the</span> |
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157 <span class="c"> * raw value before serialization</span> |
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158 <span class="c"> * @param ind {Number|String} (optional) indentation character or depth of</span> |
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159 <span class="c"> * spaces to format the output.</span> |
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160 <span class="c"> * @return {string} JSON string representation of the input</span> |
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161 <span class="c"> * @static</span> |
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162 <span class="c"> */</span> |
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163 <span class="nx">stringify</span> <span class="o">:</span> <span class="k">function</span> <span class="o">(</span><span class="nx">o</span><span class="o">,</span><span class="nx">w</span><span class="o">,</span><span class="nx">ind</span><span class="o">)</span> <span class="o">{</span> |
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164 |
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165 <span class="k">var</span> <span class="nx">m</span> <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">JSON</span><span class="o">.</span><span class="nx">_CHARS</span><span class="o">,</span> |
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166 <span class="nx">str_re</span> <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">JSON</span><span class="o">.</span><span class="nx">_SPECIAL_CHARS</span><span class="o">,</span> |
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167 <span class="nx">rep</span> <span class="o">=</span> <span class="nx">isFunction</span><span class="o">(</span><span class="nx">w</span><span class="o">)</span> <span class="o">?</span> <span class="nx">w</span> <span class="o">:</span> <span class="kc">null</span><span class="o">,</span> |
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168 <span class="nx">pstack</span> <span class="o">=</span> <span class="o">[],</span> <span class="c">// Processing stack used for cyclical ref protection</span> |
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169 <span class="c"></span> <span class="nx">_date</span> <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">JSON</span><span class="o">.</span><span class="nx">dateToString</span><span class="o">,</span> <span class="c">// Use configured date serialization</span> |
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170 <span class="c"></span> <span class="nx">format</span> <span class="o">=</span> <span class="nx">_toString</span><span class="o">.</span><span class="nx">call</span><span class="o">(</span><span class="nx">ind</span><span class="o">).</span><span class="nx">match</span><span class="o">(</span><span class="sr">/String|Number/</span><span class="o">);</span> |
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171 |
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172 <span class="k">if</span> <span class="o">(</span><span class="nx">rep</span> <span class="o">||</span> <span class="k">typeof</span> <span class="nx">w</span> <span class="o">!==</span> <span class="s1">'object'</span><span class="o">)</span> <span class="o">{</span> |
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173 <span class="nx">w</span> <span class="o">=</span> <span class="kc">undefined</span><span class="o">;</span> |
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174 <span class="o">}</span> |
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175 |
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176 <span class="k">if</span> <span class="o">(</span><span class="nx">format</span><span class="o">)</span> <span class="o">{</span> |
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177 <span class="c">// String instances and primatives are left alone. String objects</span> |
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178 <span class="c"></span> <span class="c">// coerce for the indenting operations.</span> |
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179 <span class="c"></span> <span class="k">if</span> <span class="o">(</span><span class="nx">format</span><span class="o">[</span><span class="m">0</span><span class="o">]</span> <span class="o">===</span> <span class="s1">'Number'</span><span class="o">)</span> <span class="o">{</span> |
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180 |
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181 <span class="c">// force numeric indent values between {0,100} per the spec</span> |
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182 <span class="c"></span> <span class="c">// This also converts Number instances to primative</span> |
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183 <span class="c"></span> <span class="nx">ind</span> <span class="o">=</span> <span class="k">new</span> <span class="nb">Array</span><span class="o">(</span><span class="nb">Math</span><span class="o">.</span><span class="nx">min</span><span class="o">(</span><span class="nb">Math</span><span class="o">.</span><span class="nx">max</span><span class="o">(</span><span class="m">0</span><span class="o">,</span><span class="nx">ind</span><span class="o">),</span><span class="m">100</span><span class="o">)+</span><span class="m">1</span><span class="o">).</span><span class="nx">join</span><span class="o">(</span><span class="s2">" "</span><span class="o">);</span> |
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184 <span class="o">}</span> |
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185 |
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186 <span class="c">// turn off formatting for 0 or empty string</span> |
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187 <span class="c"></span> <span class="nx">format</span> <span class="o">=</span> <span class="nx">ind</span><span class="o">;</span> |
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188 <span class="o">}</span> |
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189 |
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190 <span class="c">// escape encode special characters</span> |
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191 <span class="c"></span> <span class="k">function</span> <span class="nx">_char</span><span class="o">(</span><span class="nx">c</span><span class="o">)</span> <span class="o">{</span> |
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192 <span class="k">if</span> <span class="o">(!</span><span class="nx">m</span><span class="o">[</span><span class="nx">c</span><span class="o">])</span> <span class="o">{</span> |
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193 <span class="nx">m</span><span class="o">[</span><span class="nx">c</span><span class="o">]=</span><span class="s1">'\\u'</span><span class="o">+(</span><span class="s1">'0000'</span><span class="o">+(+(</span><span class="nx">c</span><span class="o">.</span><span class="nx">charCodeAt</span><span class="o">(</span><span class="m">0</span><span class="o">))).</span><span class="nx">toString</span><span class="o">(</span><span class="m">16</span><span class="o">)).</span><span class="nx">slice</span><span class="o">(-</span><span class="m">4</span><span class="o">);</span> |
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194 <span class="o">}</span> |
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195 <span class="k">return</span> <span class="nx">m</span><span class="o">[</span><span class="nx">c</span><span class="o">];</span> |
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196 <span class="o">}</span> |
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197 |
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198 <span class="c">// Enclose the escaped string in double quotes</span> |
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199 <span class="c"></span> <span class="k">function</span> <span class="nx">_string</span><span class="o">(</span><span class="nx">s</span><span class="o">)</span> <span class="o">{</span> |
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200 <span class="k">return</span> <span class="nx">QUOTE</span> <span class="o">+</span> <span class="nx">s</span><span class="o">.</span><span class="nx">replace</span><span class="o">(</span><span class="nx">str_re</span><span class="o">,</span> <span class="nx">_char</span><span class="o">)</span> <span class="o">+</span> <span class="nx">QUOTE</span><span class="o">;</span> |
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201 <span class="o">}</span> |
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202 |
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203 <span class="c">// Check for cyclical references</span> |
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204 <span class="c"></span> <span class="k">function</span> <span class="nx">_cyclicalTest</span><span class="o">(</span><span class="nx">o</span><span class="o">)</span> <span class="o">{</span> |
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205 <span class="k">for</span> <span class="o">(</span><span class="k">var</span> <span class="nx">i</span> <span class="o">=</span> <span class="nx">pstack</span><span class="o">.</span><span class="nx">length</span> <span class="o">-</span> <span class="m">1</span><span class="o">;</span> <span class="nx">i</span> <span class="o">>=</span> <span class="m">0</span><span class="o">;</span> <span class="o">--</span><span class="nx">i</span><span class="o">)</span> <span class="o">{</span> |
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206 <span class="k">if</span> <span class="o">(</span><span class="nx">pstack</span><span class="o">[</span><span class="nx">i</span><span class="o">]</span> <span class="o">===</span> <span class="nx">o</span><span class="o">)</span> <span class="o">{</span> |
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207 <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span><span class="o">(</span><span class="s2">"JSON.stringify. Cyclical reference"</span><span class="o">);</span> |
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208 <span class="o">}</span> |
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209 <span class="o">}</span> |
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210 <span class="k">return</span> <span class="kc">false</span><span class="o">;</span> |
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211 <span class="o">}</span> |
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212 |
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213 <span class="k">function</span> <span class="nx">_indent</span><span class="o">(</span><span class="nx">s</span><span class="o">)</span> <span class="o">{</span> |
|
214 <span class="k">return</span> <span class="nx">s</span><span class="o">.</span><span class="nx">replace</span><span class="o">(</span><span class="sr">/^/gm</span><span class="o">,</span><span class="nx">ind</span><span class="o">);</span> |
|
215 <span class="o">}</span> |
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216 |
|
217 <span class="k">function</span> <span class="nx">_object</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span><span class="nx">arr</span><span class="o">)</span> <span class="o">{</span> |
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218 <span class="c">// Add the object to the processing stack</span> |
|
219 <span class="c"></span> <span class="nx">pstack</span><span class="o">.</span><span class="nx">push</span><span class="o">(</span><span class="nx">o</span><span class="o">);</span> |
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220 |
|
221 <span class="k">var</span> <span class="nx">a</span> <span class="o">=</span> <span class="o">[],</span> |
|
222 <span class="nx">colon</span> <span class="o">=</span> <span class="nx">format</span> <span class="o">?</span> <span class="nx">COLON_SP</span> <span class="o">:</span> <span class="nx">COLON</span><span class="o">,</span> |
|
223 <span class="nx">i</span><span class="o">,</span> <span class="nx">j</span><span class="o">,</span> <span class="nx">len</span><span class="o">,</span> <span class="nx">k</span><span class="o">,</span> <span class="nx">v</span><span class="o">;</span> |
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224 |
|
225 <span class="k">if</span> <span class="o">(</span><span class="nx">arr</span><span class="o">)</span> <span class="o">{</span> <span class="c">// Array</span> |
|
226 <span class="c"></span> <span class="k">for</span> <span class="o">(</span><span class="nx">i</span> <span class="o">=</span> <span class="nx">o</span><span class="o">.</span><span class="nx">length</span> <span class="o">-</span> <span class="m">1</span><span class="o">;</span> <span class="nx">i</span> <span class="o">>=</span> <span class="m">0</span><span class="o">;</span> <span class="o">--</span><span class="nx">i</span><span class="o">)</span> <span class="o">{</span> |
|
227 <span class="nx">a</span><span class="o">[</span><span class="nx">i</span><span class="o">]</span> <span class="o">=</span> <span class="nx">_stringify</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span><span class="nx">i</span><span class="o">)</span> <span class="o">||</span> <span class="nx">NULL</span><span class="o">;</span> |
|
228 <span class="o">}</span> |
|
229 <span class="o">}</span> <span class="k">else</span> <span class="o">{</span> <span class="c">// Object</span> |
|
230 <span class="c"></span> <span class="c">// If whitelist provided, take only those keys</span> |
|
231 <span class="c"></span> <span class="nx">k</span> <span class="o">=</span> <span class="nx">isArray</span><span class="o">(</span><span class="nx">w</span><span class="o">)</span> <span class="o">?</span> <span class="nx">w</span> <span class="o">:</span> <span class="nx">Y</span><span class="o">.</span><span class="nb">Object</span><span class="o">.</span><span class="nx">keys</span><span class="o">(</span><span class="nx">o</span><span class="o">);</span> |
|
232 |
|
233 <span class="k">for</span> <span class="o">(</span><span class="nx">i</span> <span class="o">=</span> <span class="m">0</span><span class="o">,</span> <span class="nx">j</span> <span class="o">=</span> <span class="m">0</span><span class="o">,</span> <span class="nx">len</span> <span class="o">=</span> <span class="nx">k</span><span class="o">.</span><span class="nx">length</span><span class="o">;</span> <span class="nx">i</span> <span class="o"><</span> <span class="nx">len</span><span class="o">;</span> <span class="o">++</span><span class="nx">i</span><span class="o">)</span> <span class="o">{</span> |
|
234 <span class="k">if</span> <span class="o">(</span><span class="k">typeof</span> <span class="nx">k</span><span class="o">[</span><span class="nx">i</span><span class="o">]</span> <span class="o">===</span> <span class="nx">STRING</span><span class="o">)</span> <span class="o">{</span> |
|
235 <span class="nx">v</span> <span class="o">=</span> <span class="nx">_stringify</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span><span class="nx">k</span><span class="o">[</span><span class="nx">i</span><span class="o">]);</span> |
|
236 <span class="k">if</span> <span class="o">(</span><span class="nx">v</span><span class="o">)</span> <span class="o">{</span> |
|
237 <span class="nx">a</span><span class="o">[</span><span class="nx">j</span><span class="o">++]</span> <span class="o">=</span> <span class="nx">_string</span><span class="o">(</span><span class="nx">k</span><span class="o">[</span><span class="nx">i</span><span class="o">])</span> <span class="o">+</span> <span class="nx">colon</span> <span class="o">+</span> <span class="nx">v</span><span class="o">;</span> |
|
238 <span class="o">}</span> |
|
239 <span class="o">}</span> |
|
240 <span class="o">}</span> |
|
241 <span class="o">}</span> |
|
242 |
|
243 <span class="c">// remove the array from the stack</span> |
|
244 <span class="c"></span> <span class="nx">pstack</span><span class="o">.</span><span class="nx">pop</span><span class="o">();</span> |
|
245 |
|
246 <span class="k">if</span> <span class="o">(</span><span class="nx">format</span> <span class="o">&&</span> <span class="nx">a</span><span class="o">.</span><span class="nx">length</span><span class="o">)</span> <span class="o">{</span> |
|
247 <span class="k">return</span> <span class="nx">arr</span> <span class="o">?</span> |
|
248 <span class="nx">OPEN_A</span> <span class="o">+</span> <span class="nx">CR</span> <span class="o">+</span> <span class="nx">_indent</span><span class="o">(</span><span class="nx">a</span><span class="o">.</span><span class="nx">join</span><span class="o">(</span><span class="nx">COMMA_CR</span><span class="o">))</span> <span class="o">+</span> <span class="nx">CR</span> <span class="o">+</span> <span class="nx">CLOSE_A</span> <span class="o">:</span> |
|
249 <span class="nx">OPEN_O</span> <span class="o">+</span> <span class="nx">CR</span> <span class="o">+</span> <span class="nx">_indent</span><span class="o">(</span><span class="nx">a</span><span class="o">.</span><span class="nx">join</span><span class="o">(</span><span class="nx">COMMA_CR</span><span class="o">))</span> <span class="o">+</span> <span class="nx">CR</span> <span class="o">+</span> <span class="nx">CLOSE_O</span><span class="o">;</span> |
|
250 <span class="o">}</span> <span class="k">else</span> <span class="o">{</span> |
|
251 <span class="k">return</span> <span class="nx">arr</span> <span class="o">?</span> |
|
252 <span class="nx">OPEN_A</span> <span class="o">+</span> <span class="nx">a</span><span class="o">.</span><span class="nx">join</span><span class="o">(</span><span class="nx">COMMA</span><span class="o">)</span> <span class="o">+</span> <span class="nx">CLOSE_A</span> <span class="o">:</span> |
|
253 <span class="nx">OPEN_O</span> <span class="o">+</span> <span class="nx">a</span><span class="o">.</span><span class="nx">join</span><span class="o">(</span><span class="nx">COMMA</span><span class="o">)</span> <span class="o">+</span> <span class="nx">CLOSE_O</span><span class="o">;</span> |
|
254 <span class="o">}</span> |
|
255 <span class="o">}</span> |
|
256 |
|
257 <span class="c">// Worker function. Fork behavior on data type and recurse objects.</span> |
|
258 <span class="c"></span> <span class="k">function</span> <span class="nx">_stringify</span><span class="o">(</span><span class="nx">h</span><span class="o">,</span><span class="nx">key</span><span class="o">)</span> <span class="o">{</span> |
|
259 <span class="k">var</span> <span class="nx">o</span> <span class="o">=</span> <span class="nx">isFunction</span><span class="o">(</span><span class="nx">rep</span><span class="o">)</span> <span class="o">?</span> <span class="nx">rep</span><span class="o">.</span><span class="nx">call</span><span class="o">(</span><span class="nx">h</span><span class="o">,</span><span class="nx">key</span><span class="o">,</span><span class="nx">h</span><span class="o">[</span><span class="nx">key</span><span class="o">])</span> <span class="o">:</span> <span class="nx">h</span><span class="o">[</span><span class="nx">key</span><span class="o">],</span> |
|
260 <span class="nx">t</span> <span class="o">=</span> <span class="nx">type</span><span class="o">(</span><span class="nx">o</span><span class="o">);</span> |
|
261 |
|
262 <span class="k">if</span> <span class="o">(</span><span class="nx">t</span> <span class="o">===</span> <span class="nx">OBJECT</span><span class="o">)</span> <span class="o">{</span> |
|
263 <span class="k">if</span> <span class="o">(</span><span class="sr">/String|Number|Boolean/</span><span class="o">.</span><span class="nx">test</span><span class="o">(</span><span class="nx">_toString</span><span class="o">.</span><span class="nx">call</span><span class="o">(</span><span class="nx">o</span><span class="o">)))</span> <span class="o">{</span> |
|
264 <span class="nx">o</span> <span class="o">=</span> <span class="nx">o</span><span class="o">.</span><span class="nx">valueOf</span><span class="o">();</span> |
|
265 <span class="nx">t</span> <span class="o">=</span> <span class="nx">type</span><span class="o">(</span><span class="nx">o</span><span class="o">);</span> |
|
266 <span class="o">}</span> |
|
267 <span class="o">}</span> |
|
268 |
|
269 <span class="nx">switch</span> <span class="o">(</span><span class="nx">t</span><span class="o">)</span> <span class="o">{</span> |
|
270 <span class="nx">case</span> <span class="nx">STRING</span> <span class="o">:</span> <span class="k">return</span> <span class="nx">_string</span><span class="o">(</span><span class="nx">o</span><span class="o">);</span> |
|
271 <span class="nx">case</span> <span class="nx">NUMBER</span> <span class="o">:</span> <span class="k">return</span> <span class="nb">isFinite</span><span class="o">(</span><span class="nx">o</span><span class="o">)</span> <span class="o">?</span> <span class="nx">o</span><span class="o">+</span><span class="nx">EMPTY</span> <span class="o">:</span> <span class="nx">NULL</span><span class="o">;</span> |
|
272 <span class="nx">case</span> <span class="nx">BOOLEAN</span> <span class="o">:</span> <span class="k">return</span> <span class="nx">o</span><span class="o">+</span><span class="nx">EMPTY</span><span class="o">;</span> |
|
273 <span class="nx">case</span> <span class="nx">DATE</span> <span class="o">:</span> <span class="k">return</span> <span class="nx">_date</span><span class="o">(</span><span class="nx">o</span><span class="o">);</span> |
|
274 <span class="nx">case</span> <span class="nx">NULL</span> <span class="o">:</span> <span class="k">return</span> <span class="nx">NULL</span><span class="o">;</span> |
|
275 <span class="nx">case</span> <span class="nx">ARRAY</span> <span class="o">:</span> <span class="nx">_cyclicalTest</span><span class="o">(</span><span class="nx">o</span><span class="o">);</span> <span class="k">return</span> <span class="nx">_object</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span><span class="kc">true</span><span class="o">);</span> |
|
276 <span class="nx">case</span> <span class="nx">REGEXP</span> <span class="o">:</span> <span class="c">// intentional fall through</span> |
|
277 <span class="c"></span> <span class="nx">case</span> <span class="nx">ERROR</span> <span class="o">:</span> <span class="c">// intentional fall through</span> |
|
278 <span class="c"></span> <span class="nx">case</span> <span class="nx">OBJECT</span> <span class="o">:</span> <span class="nx">_cyclicalTest</span><span class="o">(</span><span class="nx">o</span><span class="o">);</span> <span class="k">return</span> <span class="nx">_object</span><span class="o">(</span><span class="nx">o</span><span class="o">);</span> |
|
279 <span class="nx">default</span> <span class="o">:</span> <span class="k">return</span> <span class="kc">undefined</span><span class="o">;</span> |
|
280 <span class="o">}</span> |
|
281 <span class="o">}</span> |
|
282 |
|
283 <span class="c">// process the input</span> |
|
284 <span class="c"></span> <span class="k">return</span> <span class="nx">_stringify</span><span class="o">({</span><span class="s1">''</span><span class="o">:</span><span class="nx">o</span><span class="o">},</span><span class="nx">EMPTY</span><span class="o">);</span> |
|
285 <span class="o">}</span> |
|
286 <span class="o">});</span> |
|
287 </pre></div> |
|
288 </div> |
|
289 </div> |
|
290 </div> |
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291 <div class="yui-b"> |
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292 <div class="nav"> |
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293 |
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294 <div id="moduleList" class="module"> |
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295 <h4>Modules</h4> |
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296 <ul class="content"> |
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297 <li class=""><a href="module_anim.html" title="anim">anim</a></li> |
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298 <li class=""><a href="module_attribute.html" title="attribute">attribute</a></li> |
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299 <li class=""><a href="module_base.html" title="base">base</a></li> |
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300 <li class=""><a href="module_cache.html" title="cache">cache</a></li> |
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301 <li class=""><a href="module_classnamemanager.html" title="classnamemanager">classnamemanager</a></li> |
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302 <li class=""><a href="module_collection.html" title="collection">collection</a></li> |
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303 <li class=""><a href="module_console.html" title="console">console</a></li> |
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304 <li class=""><a href="module_console-filters.html" title="console-filters">console-filters</a></li> |
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305 <li class=""><a href="module_cookie.html" title="cookie">cookie</a></li> |
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306 <li class=""><a href="module_dataschema.html" title="dataschema">dataschema</a></li> |
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307 <li class=""><a href="module_datasource.html" title="datasource">datasource</a></li> |
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308 <li class=""><a href="module_datatype.html" title="datatype">datatype</a></li> |
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309 <li class=""><a href="module_dd.html" title="dd">dd</a></li> |
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310 <li class=""><a href="module_dom.html" title="dom">dom</a></li> |
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311 <li class=""><a href="module_dump.html" title="dump">dump</a></li> |
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312 <li class=""><a href="module_event.html" title="event">event</a></li> |
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313 <li class=""><a href="module_event-custom.html" title="event-custom">event-custom</a></li> |
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314 <li class=""><a href="module_event-simulate.html" title="event-simulate">event-simulate</a></li> |
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315 <li class=""><a href="module_history.html" title="history">history</a></li> |
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316 <li class=""><a href="module_imageloader.html" title="imageloader">imageloader</a></li> |
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317 <li class=""><a href="module_io.html" title="io">io</a></li> |
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318 <li class="selected"><a href="module_json.html" title="json">json</a></li> |
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319 <li class=""><a href="module_node.html" title="node">node</a></li> |
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320 <li class=""><a href="module_node-focusmanager.html" title="node-focusmanager">node-focusmanager</a></li> |
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321 <li class=""><a href="module_node-menunav.html" title="node-menunav">node-menunav</a></li> |
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322 <li class=""><a href="module_oop.html" title="oop">oop</a></li> |
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323 <li class=""><a href="module_overlay.html" title="overlay">overlay</a></li> |
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324 <li class=""><a href="module_plugin.html" title="plugin">plugin</a></li> |
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325 <li class=""><a href="module_profiler.html" title="profiler">profiler</a></li> |
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326 <li class=""><a href="module_queue.html" title="queue">queue</a></li> |
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327 <li class=""><a href="module_slider.html" title="slider">slider</a></li> |
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328 <li class=""><a href="module_stylesheet.html" title="stylesheet">stylesheet</a></li> |
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329 <li class=""><a href="module_substitute.html" title="substitute">substitute</a></li> |
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330 <li class=""><a href="module_test.html" title="test">test</a></li> |
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331 <li class=""><a href="module_widget.html" title="widget">widget</a></li> |
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332 <li class=""><a href="module_widget-position.html" title="widget-position">widget-position</a></li> |
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333 <li class=""><a href="module_widget-position-ext.html" title="widget-position-ext">widget-position-ext</a></li> |
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334 <li class=""><a href="module_widget-stack.html" title="widget-stack">widget-stack</a></li> |
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335 <li class=""><a href="module_widget-stdmod.html" title="widget-stdmod">widget-stdmod</a></li> |
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336 <li class=""><a href="module_yui.html" title="yui">yui</a></li> |
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337 </ul> |
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338 </div> |
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339 |
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340 <div id="classList" class="module"> |
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341 <h4>Classes</h4> |
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342 <ul class="content"> |
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343 <li class=""><a href="JSON.html" title="JSON">JSON</a></li> |
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344 </ul> |
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345 </div> |
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346 |
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347 <div id="fileList" class="module"> |
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348 <h4>Files</h4> |
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349 <ul class="content"> |
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350 <li class=""><a href="json-parse.js.html" title="json-parse.js">json-parse.js</a></li> |
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351 <li class="selected"><a href="json-stringify.js.html" title="json-stringify.js">json-stringify.js</a></li> |
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352 </ul> |
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353 </div> |
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354 |
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355 |
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356 |
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357 |
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358 |
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359 </div> |
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360 </div> |
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361 </div> |
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362 <div id="ft"> |
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363 <hr /> |
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364 Copyright © 2009 Yahoo! Inc. All rights reserved. |
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365 </div> |
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366 </div> |
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367 <script type="text/javascript"> |
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368 ALL_YUI_PROPS = [{"access": "private", "host": "JSON", "name": "_BRACKETS", "url": "JSON.html#property__BRACKETS", "type": "property"}, {"access": "protected", "host": "JSON", "name": "_CHARS", "url": "JSON.html#property__CHARS", "type": "property"}, {"access": "", "host": "JSON", "name": "dateToString", "url": "JSON.html#method_dateToString", "type": "method"}, {"access": "private", "host": "JSON", "name": "escapeException", "url": "JSON.html#method_escapeException", "type": "method"}, {"access": "private", "host": "JSON", "name": "_ESCAPES", "url": "JSON.html#property__ESCAPES", "type": "property"}, {"access": "private", "host": "JSON", "name": "_INVALID", "url": "JSON.html#property__INVALID", "type": "property"}, {"access": "private", "host": "JSON", "name": "Native", "url": "JSON.html#property_Native", "type": "property"}, {"access": "", "host": "JSON", "name": "parse", "url": "JSON.html#method_parse", "type": "method"}, {"access": "private", "host": "JSON", "name": "_revive", "url": "JSON.html#method__revive", "type": "method"}, {"access": "private", "host": "JSON", "name": "_SIMPLE", "url": "JSON.html#property__SIMPLE", "type": "property"}, {"access": "protected", "host": "JSON", "name": "_SPECIAL_CHARS", "url": "JSON.html#property__SPECIAL_CHARS", "type": "property"}, {"access": "", "host": "JSON", "name": "stringify", "url": "JSON.html#method_stringify", "type": "method"}, {"access": "private", "host": "JSON", "name": "_UNICODE_EXCEPTIONS", "url": "JSON.html#property__UNICODE_EXCEPTIONS", "type": "property"}, {"access": "private", "host": "JSON", "name": "_VALUES", "url": "JSON.html#property__VALUES", "type": "property"}]; |
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